Reddit reviews Short-Cut Math
We found 2 Reddit comments about Short-Cut Math. Here are the top ones, ranked by their Reddit score.
Math (Dover Books on Mathematics)Short-Cut Math (Dover Books on Mathematics)ASIN: 0486246116
Get this book. It will seriously help you with little tricks to do these problems in half the time or less. It really helped me not be shy about my maths skills at work.
https://www.amazon.com/Short-Cut-Math-Gerard-W-Kelly/dp/0486246116/ref=nodl_
You should pick up for 3usd this great book called e short cut math.
I learned a lot of techniques for all sort of operations.
A word of warning: it works when practised. Maths both theory and practise is like a muscle: you need to keep it trained.